homtom ht3 pro - deadbrick

first of all hello to the community, i hope somebody can help me with my problem!
i have a ht3 pro that was on official ROM V1.1.3. but this ROM is not downloadable on any site. As i wanted to install a custom ROM (KMDROID V1.0.6), i flashed die official ROM V.1.0.6. and me phone was initially bricked and the phone doesnt switch on any more.Stupid as i was, i didnt make any backup! Then i had some DRAM failures at SPFT but somehow i managed to flash official ROM V.1.1.2 but although it was successful at the SPFT it didnt boot either. Then i did another very stupid thing to flash the KMDROID 1.0.6. with the preloader of V1.1.2., and now i get this error: BROM Exception! ( BROM ERROR : S_STORAGE_NOT_MATCH (3182).

Right now i cant flash anything without this error. cant format auto or check EMMC in SPFT. So i guess i made to really brick my emmc/phone, maybe someone knows a cure.

My system is manjaro 16.06., SPFT 15.12, 1604, 1620 ..., i also deinstalled modemmanger (after that i was able to flash V.1.1.2), i also tried it on a windows system with the same 3182 error!

i cant format the phone, not even manual with hex code for preloader. Same Brom Error, Storage not match 3183. It seems that sp flash tool isnt recognising the phone at all, it always connects and disconnects every 2 seconds, it doesnt matter if battery is inserted after i clicked download, or without battery, tried some key combos, result stays the same.

Tried it on linux and win10 (mtk vcom drivers installed)

Is there any hope, maybe a hardware mod?

Thanks in advance and sorry for my stupidyness not making a proper backup!

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